Struggling with the desire for more kids at wrong time?

I’m currently a mom to an almost two year old. I’m about to graduate with my associates, and then I plan to go back to school for an RN program this spring. We can afford to live on hubbys income, I just like the idea of being able to work and make good money if I ever need to. I plan to be a stay at home mom and just work PRN or whenever we need me to. The issue is that my desire for another baby is so strong! I can’t get it out of my head. I know the responsible thing to do is get school done before having another, and that’s my plan, but my heart yearns for more kids. The vivid dreams of holding another baby are so real to me, and I wake up feeling like I’m missing something. I’m also a little sad at how big the age gap will be by the time I’m done with school. I loved being close in age with my sibling and wanted the same for my kids. I know it’s not a big deal, but it’s bothering me. Has anyone else struggled with this? Not sure what I’m looking for here, maybe just solidarity.